Here a home owner used Ellis 4x4 Screw Jacks to level the sagging floor. Access to the underside of the floor was obtained through a crawl space. For a solid foundation, the Screw jacks were placed on concrete piers. Then 4x4 lumber was placed inside the screw jacks. Next, the 4x4 Lumber was secured to a horizontal 4x6 beam using an Ellis Purlin Splicer and then jacked into position.

Pictured right are ELLIS STEEL SHORES used to re-level and support sagging floor joists in a residential application. The Ellis Steel Shores are available in many different heights with various lengths of screw adjustment. They are available with or without thrust bearings in the adjustment nut. The purpose of the bearings is to reduce friction when making adjustment under load and provide the ability to jack weight.Choose from three types:LIGHT DUTY / LIGHT DUTY WITH BEARINGS / HEAVY DUTY.

More Details on How to Fix Your Sagging Floors

1.Simply cut your lumber to proper length:

·Measure the total shoring height (floor to beam).

·Subtract the total height of the object you will set the Ellis Screw Jack on top of from the total shoring height; for example, a piering block (like pictured above).

·Subtract 9.5” if you are using a 4x4 or 11” if using a 6x6 Ellis Screw Jack.This is the total distance from the bottom of the square tubing of the Screw Jack (this is where the lumber will sit inside the jack) to the base of the Screw Jack.